TWI715197B - Embedded smart antenna module of smart tv - Google Patents

Abstract

An embedded smart antenna module of a smart TV comprises a plurality of antennas, a wireless chip, a control unit, and an application unit. The plurality of antennas are connected to a wireless chip. The wireless chip having a plurality of modulation and coding schemes selects one of the modulation and coding schemes to receive and transmit wireless signal with a wireless device. The control unit is connected to the plurality of antennas to control a plurality of antenna modes. The application unit connecting with the wireless chip and the control unit has a throughput monitoring server. The application unit uses the control unit to switch the antenna modes. Based on the modulation and coding scheme selected by the wireless chip, the application unit stores the plurality of physical layer data rates corresponding the plurality of antenna modes as a mode sampling information, and accordingly one of the antenna modes having highest physical data rate is selected as a preferred antenna mode. A throughput monitoring client obtains the monitoring status of the throughput monitoring server according to the wireless device, and the throughput monitoring client remote controls the application unit to select the preferred antenna mode. Thus, the data rate can be increased.

Description

Embedded smart antenna module of smart TV

The invention relates to a smart antenna module, and in particular to an embedded smart antenna module of a smart TV.

The wireless transmission throughput of the terminal device in the field of use is greatly affected by environmental changes. When using the terminal device, the user may not always experience the highest data rate brought by the throughput limit designed by the device. Transmission efficiency. In addition, wireless transmission requires not only a digital chip with sufficient computing and processing capabilities to perform signal encoding and decoding, but also a correspondingly improved radio frequency circuit with an antenna (or antenna system) with sufficient bandwidth and high efficiency. In fact, the upper limit of the actual data transmission rate of wireless products provided by wireless product suppliers is not only limited by the respective performance limitations of various radio frequency components, analog modules and digital modules, but also a large part of the reason All components and module hardware cooperate with the integration of software algorithms.

In the traditional system design point of view, in the process of wireless transmission, the increase or decrease of the wireless data transmission rate is mainly determined by the control of the wireless chip (wireless chip) and the channel state (external transmission environment), and the radio frequency components and antenna components It is in a passive position, without any control. There are still many limitations in finding a solution to increase the data transmission rate from the point of view of the wireless chip. The result of system integration will significantly affect the overall performance of the antenna module (or called the module). For existing smart TVs Line reception performance. Due to the demand for real-time high-flow audio and video content for wireless reception, the industry is not only concerned about increasing the maximum instantaneous transmission rate, but also expecting wireless devices to improve both transmission rate and stability. There is also a need for a solution that can respond to the environmental conditions around the product and improve the quality of wireless transmission.

In order to solve the aforementioned prior technical problems, an embodiment of the present invention provides an embedded smart antenna module for a smart TV, which is installed in a smart TV. The smart TV and the wireless device are both installed in a spatial field. The embedded smart antenna The module includes multiple antennas, wireless chips, control units and application units. Multiple antennas are connected to the wireless chip and have multiple antenna modes. The wireless chip has multiple modulation and coding mechanisms (MCS). The wireless chip chooses to use any one of multiple modulation and coding mechanisms and uses multiple antennas to communicate with each other. The wireless device sends and receives wireless signals. The control unit is connected to a plurality of antennas to control the plurality of antenna modes. The application unit connects the wireless chip and the control unit, and has a flow monitoring server. The application unit uses the control unit to switch multiple antenna modes. Based on the modulation and encoding mechanism selected by the wireless chip, the application unit uses the traffic monitoring server to obtain the physical layer data rate corresponding to each antenna mode. Based on the modulation and coding mechanism selected by the wireless chip, the application unit stores a plurality of physical layer data rates corresponding to a plurality of antenna modes as mode sampling information. Based on the modulation and coding mechanism selected by the wireless chip, the application unit selects the antenna mode corresponding to the highest among the plurality of physical layer data rates as the preferred antenna mode according to the mode sampling information. The flow monitoring user terminal obtains the monitoring status of the flow monitoring server according to the wireless device, and the remote control application unit selects the preferred antenna mode.

In summary, the embodiment of the present invention provides an embedded smart TV Smart antenna module, based on the mode sampling method that can face the variable conditions in the use environment space, with the specification conditions of the modulation and coding mechanism selected during the operation of the wireless chip, it can select the best of all antenna modes As the preferred antenna mode, it is obviously helpful to improve the long-term average speed and stability of the wireless transmission data rate of audio-visual data, and has high industrial application value in smart TV products.

In order to further understand the features and technical content of the present invention, please refer to the following detailed descriptions and drawings about the present invention, but these descriptions and accompanying drawings are only used to illustrate the present invention, not the rights to the present invention The scope is subject to any restrictions.

1‧‧‧Smart TV

2‧‧‧Embedded smart antenna module for smart TV

21‧‧‧antenna

22‧‧‧Wireless chip

23‧‧‧Control Unit

24‧‧‧Application Unit

3‧‧‧Wireless device

241‧‧‧Flow Monitoring Server

TF‧‧‧Field test throughput

PF‧‧‧Field test physical layer data rate

TW‧‧‧Working mode throughput

PW‧‧‧Working mode physical layer data rate

TT‧‧‧Target throughput

△‧‧‧Default value

Fn‧‧‧Field test signal

Fn’‧‧‧External audiovisual information

S110, S120, S130, S140, S150, S151, S152, S153, S154, S160‧‧‧Step

Fig. 1 is a block diagram of an embedded smart antenna module of a smart TV provided by an embodiment of the present invention.

FIG. 2 is a schematic diagram of an application scenario of an embedded smart antenna module installed in a smart TV provided by an embodiment of the present invention.

FIG. 3 is a schematic diagram of an application scenario of an embedded smart antenna module installed in a smart TV according to another embodiment of the present invention.

Fig. 4 is a flowchart of a method for controlling an embedded smart antenna module of a smart TV according to an embodiment of the present invention.

1, this embodiment provides an embedded smart antenna module for a smart TV. The embedded smart antenna module 2 of the smart TV is installed on the smart TV 1. The smart TV 1 and the wireless device 3 are both installed in the space field. , The spatial field such as Building indoor areas such as living room, bedroom, office, exhibition space, hall, etc. The embedded smart antenna module 2 uses, for example, a wireless local area network that complies with the IEEE 802.11 standard to transmit and receive signals, for example, it complies with common WiFi (Wireless Fidelity) wireless certification specifications. The embedded smart antenna module 2 includes a plurality of antennas 21, a wireless chip 22, a control unit 23 and an application unit 24. A plurality of antennas 21 are connected to the wireless chip 22 and have a plurality of antenna modes. The wireless chip 22 has a plurality of modulation and coding mechanisms (MCS), and the wireless chip 22 selects any one of the plurality of modulation and coding mechanisms and utilizes A plurality of antennas 21 transmit and receive wireless signals with the wireless device 3. The control unit 23 is connected to a plurality of antennas 21 to control the plurality of antenna modes. Moreover, the control unit 23 is preferably a microcontroller (MCU) independent of the wireless chip. The application unit 24 is connected to the wireless chip 22 and the control unit 23, and has a flow monitoring server 241, and the flow monitoring server 241 is preferably installed in the Linux operating system of the smart TV 1. The application unit 24 uses the control unit 23 to switch a plurality of antenna modes. Based on the modulation and coding mechanism selected by the wireless chip 22, the application unit 24 uses the traffic monitoring server 241 to obtain the physical data rate corresponding to each antenna mode. Based on the modulation and coding mechanism selected by the wireless chip 22, the application unit 24 stores a plurality of physical layer data rates corresponding to a plurality of antenna modes as mode sampling information. Based on the modulation and coding mechanism selected by the wireless chip 22, the application unit 24 selects the antenna mode corresponding to the highest among the plurality of physical layer data rates as the preferred antenna mode according to the mode sampling information. The traffic monitoring client 4 obtains the monitoring status of the traffic monitoring server 241 according to the wireless device 3, and the remote control application unit 24 selects the preferred antenna mode. The flow monitoring client 4 uses the wireless device 3 to connect to the flow monitoring server 241. The flow monitoring client 4 can be a device independent of the wireless device 3, and the flow monitoring client 4 can also be changed to It is installed in the wireless device 3, and the following embodiments in FIG. 2 and FIG. 3 will be illustrated as examples.

The selection of the preferred antenna mode may be based on throughput or physical layer data rate. The performance of the smart TV 1 in wirelessly receiving audio-visual information is affected by its location in the spatial field, and also by the location of the wireless signal source (wireless device 3) in the spatial field. The environment of the spatial field The state may also change dynamically. Due to the different positions in the spatial field and the possible changes in the environmental state, the preferred (or optimal) antenna mode may be different. Therefore, the embodiment of the present invention sets up a new selection The mechanism of optimizing the antenna pattern. In this embodiment, the test mode is executed first. The traffic monitoring server 241 uses a plurality of antennas 21 to receive the field test signal (Fn) (for example, a piece of video and audio information for testing) from the wireless device 3 to execute the test position Field test mode, and obtain field test throughput (TF) and field test physical layer data rate (PF) of field test mode, application unit 24 stores field test throughput (TF) and field test physics The relationship ratio of layer data rate (PF), namely TF/PF. Then, when the smart TV 1 is operating normally (displaying TV audio and video), the traffic monitoring server 241 uses a plurality of antennas 21 to receive remote signals (TV audio and video) from the wireless device 3 to execute the working mode at the test location, and obtain The working mode throughput (TW) and the working mode physical layer data rate (PW) of the working mode, the application unit 24 multiplies the working mode physical layer data rate (PW) and the relational ratio (TF/PF) to obtain the target throughput ( TT). The target throughput (TT) is the upper limit of the expected throughput obtained in the field test mode, and can be expressed as: TT=PW*TF/PF. The application unit 24 monitors whether the working mode throughput (TW) is lower than the target throughput (TT), and when the working mode throughput (TW) is higher than or equal to the target throughput (TT), there is no need to reselect the preferred antenna mode. When the working mode throughput (TW) is lower than the target throughput (TT), the application unit 24 reselects the preferred antenna mode.

Furthermore, when the working mode throughput (TW) is lower than the target throughput (TT), there are two different judgment mechanisms according to the degree of difference between the working mode throughput (TW) and the target throughput (TT). When the working mode throughput (TW) is lower than the target throughput (TT), and the difference between the working mode throughput (TW) and the target throughput (TT) is greater than or equal to a preset value (△), it means that more needs to be done The application unit 24 changes the modulation and coding mechanism selected by the wireless chip 22, and based on the changed modulation and coding mechanism, selects the antenna mode corresponding to the highest physical layer data rate in the mode sampling information. As the updated preferred antenna mode. When the working mode throughput (TW) is lower than the target throughput (TT), and the difference between the working mode throughput (TW) and the target throughput (TT) is less than the preset value (△), the application unit 24 is based on The received signal strength indicator (RSSI) and signal-to-noise ratio (SNR) of the plurality of antennas 21 obtained by the wireless chip 22 to reselect the preferred antenna mode, for example, select the antenna mode that minimizes the difference in received signal strength indicators of all antennas 21 Is the preferred antenna mode, or the antenna mode with the largest signal-to-noise ratio is selected as the preferred antenna mode. For the details of the aforementioned mode sampling information, for example, field test throughput (TF) and field test physical layer data rate (PF) can be matched with the receiving state parameter values of multiple antennas 21 (such as received signal strength indication, signal noise Than wait) for storage together. In fact, for example, a look-up table (LUT) can be stored. Each piece of data in the look-up table includes TF, PF (and TF/PF) and the corresponding received signal strength indicator, signal-to-noise ratio, etc. of the antenna 21 State parameter value. Furthermore, the derived field test throughput (TF), field test physical layer data rate (PF) and relational ratio (TF/PF) can also be obtained by internal difference or extrapolation calculation based on the known pattern sampling information.

Furthermore, referring to FIG. 2, in an embodiment, the wireless device 3 may be a wireless access point, and the traffic monitoring client 4 and the smart TV 1 are connected to the wireless access point respectively. Click to establish a connection, the traffic monitoring client 4 is, for example, a smart phone (or a personal computer), and this smart phone is also placed in the space field. The traffic monitoring client 4 transmits the field test signal Fn to the smart TV 1 at the test location via the wireless access point. In other words, the smart phone transmits the field test signal Fn to the smart TV 1, where the field test signal Fn is Redirected via wireless access point. The field test signal Fn can be the audiovisual information stored by the traffic monitoring client 4 itself, or it can be the external audiovisual information Fn' obtained from outside the spatial field (for example, audiovisual streaming, cloud or online video). In addition, the smart TV 1 can also be used to place a plurality of test locations in a spatial field to obtain and store a plurality of field test throughput (TF) and a plurality of field test physical layer data rates (PF).

In another embodiment, referring to FIG. 3, the wireless device 3 may be a wireless access point, and the traffic monitoring client 4 is installed at the wireless access point. At this time, the traffic monitoring client 4 is, for example, one of the wireless access points. application. The traffic monitoring client 4 uses the wireless access point to transmit the field test signal Fn to the smart TV 1. The source of the field test signal Fn is the external audio-visual information Fn' obtained from outside the space field (for example, audio-visual streaming, cloud Or online video). The smart TV 1 is used to place a plurality of test positions in a space field to obtain and store a plurality of field test throughput (TF) and a plurality of field test physical layer data rates (PF). The traffic monitoring client 4 in the embodiment of FIG. 3 can also be changed to a smart phone (or a personal computer) and establish a connection with the wireless access point 3. In addition, regardless of whether the traffic monitoring client 4 is installed on a wireless access point, or the traffic monitoring client 4 is a smart phone (or personal computer) connected to the wireless access point, it is better, in order to achieve better The test result is that in the field test mode, the traffic monitoring user 4 uses the wireless access point to transmit the field test signal Fn to the smart TV 1 to perform a full load test.

Furthermore, according to the logic of the usage scenario and the control flow, it is used to improve the wireless receiving effect of the smart TV 1. Please refer to FIG. 4. This embodiment provides a method for controlling an embedded smart antenna module of a smart TV. The method includes The following steps. Firstly, step S110 is performed to place the smart TV 1 and the wireless device 3 in the same spatial field, that is, as placing the smart TV 1 in a test position in the spatial field. The premises are for example offices, parking lots, restaurants, houses, shopping malls. The wireless device 3 is, for example, a wireless access point, and the TV signal source of the smart TV 1 is the wireless access point. Then, in step S120, the wireless chip 22 selects to use any one of a plurality of modulation and coding mechanisms and uses a plurality of antennas 21 to transmit and receive wireless signals with the wireless device 3. Among them, the application unit 24 utilizes the control unit 23 to switch a plurality of antenna modes. Then, step S130 is performed. Based on the modulation and coding mechanism selected by the wireless chip 22, the application unit 24 uses the traffic monitoring server 241 to obtain the physical layer data rate corresponding to each antenna mode. Then, step S140 is performed. Based on the modulation and coding mechanism selected by the wireless chip 22, the application unit 24 stores the plurality of physical layer data rates corresponding to the plurality of antenna modes as mode sampling information. Then, step S150 is performed. Based on the modulation and coding mechanism selected by the wireless chip 22, the application unit 24 selects the antenna mode corresponding to the highest among the plurality of physical layer data rates according to the mode sampling information as the preferred one. Antenna pattern.

Step S150 can be divided into several sub-steps: Step 151, it is determined whether the working mode throughput (TW) is lower than the target throughput (TT). When the working mode throughput (TW) is higher than or equal to the target throughput (TT), return to step S151. When the working mode throughput (TW) is lower than the target throughput (TT), the judgment of step S152 is performed to judge the difference between the working mode throughput (TW) and the target throughput (TT). When the difference between the working mode throughput (TW) and the target throughput (TT) is greater than or equal to a preset value (△), step In step S153, the application unit 24 changes the modulation and coding mechanism selected by the wireless chip 22, and based on the changed modulation and coding mechanism, selects the antenna mode corresponding to the highest physical layer data rate in the mode sampling information as The updated preferred antenna mode. When the difference between the working mode throughput (TW) and the target throughput (TT) is less than the preset value (△), step S154 is performed, and the application unit 24 is based on the received signal strength of the plurality of antennas 21 obtained by the wireless chip 22 Indicate and signal-to-noise ratio to reselect the preferred antenna mode. The application unit 24 re-selects the preferred antenna mode according to the received signal strength indicator and the signal-to-noise ratio of the plurality of antennas 21 obtained by the wireless chip 22, for example: judging the reception of each antenna 21 in each antenna mode For the difference value indicated by the signal strength, the antenna mode with the smallest difference value is selected as the updated preferred antenna mode. For another example, the signal-to-noise ratio of each antenna 21 is determined in each antenna mode, and the antenna mode with the largest average value of the signal-to-noise ratios of all antennas 21 is selected as the updated preferred antenna mode.

Then, after step S153 or step S154, step S160 is performed. The traffic monitoring client 4 obtains the monitoring status of the traffic monitoring server 241 according to the wireless device 3, and the remote control application unit 24 selects the preferred antenna mode. Step S160 is to allow the user to monitor or set the embedded smart antenna module 2 of the smart TV 1. For example, use a smart phone as the traffic monitoring client 4, or use the traffic monitoring client 4 installed in a wireless access point to monitor the built-in Smart antenna module 2 for monitoring. Each time the position of the smart TV 1 in the spatial field is changed, steps S120 to S160 can be performed again, so that the wireless reception effect of the smart TV 1 at any position is optimized. In addition, each time step S110 to step S140 are executed, each test location can also use wireless indoor positioning technology to obtain a positioning point. The data of the positioning point and the corresponding relationship ratio can be stored together. If the mode sampling information is used to look up the table Stored in the way, each piece of data in the lookup table includes TF, PF, TF/PF, and the corresponding anchor point.

In summary, the embodiment of the present invention provides an embedded smart antenna module for a smart TV, which is based on the mode sampling method that can face the variable conditions in the use environment space, and cooperates with the modulation selected during the operation of the wireless chip. With the specification conditions of the coding mechanism, the best antenna mode can be selected as the preferred antenna mode, which will obviously help the long-term average speed and stability of the wireless transmission data rate of audio and video data. In terms of smart TV products It has high industrial application value. In addition, the flow monitoring client can be the user’s mobile phone or personal computer. The flow pattern sampling can be done not only by wireless access points, but also by the user’s mobile phone (or personal computer) to take into account the smart TV. There are two alternatives for receiving video and audio from a general (common indoor fixed-point fixed) wireless access point or from a user's portable device (such as a mobile phone). It is a solution for improving the user experience quality that takes into account the flexibility of the application. .

The above are only the embodiments of the present invention, and they are not intended to limit the patent scope of the present invention.

1‧‧‧Smart TV

2‧‧‧Embedded smart antenna module for smart TV

21‧‧‧antenna

22‧‧‧Wireless chip

23‧‧‧Control Unit

24‧‧‧Application Unit

3‧‧‧Wireless device

241‧‧‧Flow Monitoring Server

Claims (9)

An embedded smart antenna module of a smart TV is installed on the smart TV. The smart TV and a wireless device are both installed in a spatial field. The embedded smart antenna module includes: a wireless chip; a plurality of antennas connected The wireless chip has a plurality of antenna modes, wherein the wireless chip has a plurality of modulation and coding mechanisms (MCS), the wireless chip selects any one of the modulation and coding mechanisms and uses the antennas to interact with the The wireless device sends and receives wireless signals; a control unit connected to the antennas to control the antenna modes; and an application unit connected to the wireless chip and the control unit, having a flow monitoring server, and the application unit uses the control The unit switches the antenna modes; wherein, based on the modulation and encoding mechanism selected by the wireless chip, the application unit uses the traffic monitoring server to obtain a physical layer data rate corresponding to each antenna mode; wherein, Based on the modulation and coding mechanism selected by the wireless chip, the application unit stores the physical layer data rates corresponding to the antenna modes as a mode sampling information; wherein, based on the selected wireless chip According to the modulation and coding mechanism, the application unit selects the antenna mode corresponding to the highest physical layer data rate according to the mode sampling information as a preferred antenna mode; wherein, a traffic monitoring client terminal is based on the wireless device In order to obtain the monitoring status of the flow monitoring server, and remotely control the application unit to select the preferred antenna mode; wherein, the flow monitoring server uses the antennas to receive field test signals from the wireless device to execute a test position Field test mode, and obtain the field test throughput and field test physical layer of the field test mode Data rate, the application unit stores a relational ratio between the field test throughput and the field test physical layer data rate; wherein, the traffic monitoring server uses the antennas to receive a remote signal from the wireless device to Execute a working mode at the test position, and obtain a working mode throughput and a working mode physical layer data rate of the working mode, and the application unit multiplies the working mode physical layer data rate by the relation ratio to obtain a Target throughput; wherein, the application unit monitors whether the working mode throughput is lower than the target throughput, and when the working mode throughput is lower than the target throughput, the application unit reselects the preferred antenna mode. The embedded smart antenna module of the smart TV according to claim 1, wherein when the working mode throughput is lower than the target throughput, and the difference between the working mode throughput and the target throughput is greater than or equal to one With the default value, the application unit changes the modulation and coding mechanism selected by the wireless chip, and based on the changed modulation and coding mechanism, selects the highest physical layer data rate in the mode sampling information The corresponding antenna mode is used as the updated preferred antenna mode. The embedded smart antenna module of the smart TV according to claim 1, wherein when the working mode throughput is lower than the target throughput, and the difference between the working mode throughput and the target throughput is less than a preset Value, the application unit reselects the preferred antenna mode according to the received signal strength indication and the signal-to-noise ratio of the antennas obtained by the wireless chip. The embedded smart antenna module of a smart TV according to claim 1, wherein the wireless device is a wireless access point, and the traffic monitoring client and the smart TV establish connections with the wireless access point respectively, The traffic monitoring client transmits the field test signal to the smart TV located at the test location via the wireless access point, and the smart TV is used to place a plurality of test locations in the spatial field to obtain and store Multiple field test throughput and multiple field test physical layer data rate. The embedded smart antenna module of the smart TV according to claim 1, wherein the wireless device is a wireless access point, the traffic monitoring client is installed at the wireless access point, and the traffic monitoring client uses The wireless access point transmits a field test signal to the smart TV, and the smart TV is used to place a plurality of test positions in the space field to obtain and store a plurality of field test throughputs and a plurality of field test physics Layer data rate. The embedded smart antenna module of the smart TV according to claim 4 or 5, wherein in the field test mode, the traffic monitoring client uses the wireless access point to transmit the field test signal to the Smart TV to perform a full load test. The embedded smart antenna module of the smart TV according to claim 4, wherein the traffic monitoring client is a smart phone or a personal computer. The embedded smart antenna module of the smart TV according to claim 1, wherein the control unit is a microcontroller independent of the wireless chip. The embedded smart antenna module of the smart TV according to claim 1, wherein the traffic monitoring server is installed in the Linux operating system of the smart TV.

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